package com.huangcy.gulimall.cart.controller;

import com.huangcy.common.constant.AuthServerConstant;
import com.huangcy.gulimall.cart.interceptor.CartInterceptor;
import com.huangcy.gulimall.cart.service.CartService;
import com.huangcy.gulimall.cart.vo.Cart;
import com.huangcy.gulimall.cart.vo.CartItem;
import com.huangcy.gulimall.cart.vo.UserInfoTo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;

/**
 * @program: gulimall
 * @description:
 * @author: huangcy
 * @create: 2022-08-30 18:06
 **/
@Controller
@Slf4j
public class CartController {

    @Autowired
    CartService cartService;


    @ResponseBody
    @GetMapping("/currentUserCartItems")
    public List<CartItem> getCurrentUserCartItems() {
        return cartService.getUserCartItems();
    }

    /**
     * @param
     * @return 浏览器有一个cookie 临时身份
     * 登录：session有
     * 没登陆：按照cookie里面带来的user-key来做
     * 第一次：如果没有临时用户，则需要创建
     */

    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {

        // 1、 快速得到用户信息：user-key
        Cart cart = cartService.getCart();
        model.addAttribute("cart", cart);
        return "cartList";
    }

    /**
     * redirectAttributes.addFlashAttribute();将数据放在session里面可以在页面取出，但是只能取一次
     * redirectAttributes.addAttribute("skuId", skuId);将数据放在url后面
     *
     * @param skuId
     * @param num
     * @param redirectAttributes
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num, RedirectAttributes redirectAttributes) throws ExecutionException, InterruptedException {
        cartService.addToCart(skuId, num);
        redirectAttributes.addAttribute("skuId", skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
    }

    /**
     * 跳到成功页
     *
     * @param skuId
     * @param model
     * @return
     */
    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId, Model model) {
        // 重定向到成功页面。 再次查一下购物车数据即可
        CartItem item = cartService.getCartItem(skuId);
        model.addAttribute("item", item);
        return "success";
    }


    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId, @RequestParam("check") Integer check) {
        cartService.checkItem(skuId, check);

        return "redirect:http://cart.gulimall.com/cart.html";

    }

    /**
     * .
     * 修改购物项数量
     *
     * @param skuId
     * @param num
     * @return
     */
    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num) {
        cartService.changeItemCount(skuId, num);
        return "redirect:http://cart.gulimall.com/cart.html";
    }


    @GetMapping("deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId) {
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cart.html";

    }
}
